On Wed, Apr 23, 2014 at 6:38 AM, Sergey Konoplev <gray...@gmail.com> wrote:
> > BTW, I didn't manage to make a test case yet. Recently, when I was > migrating several servers to skytools3 and upgrading from 9.0 to 9.2, > I noticed that epoch was copied, timeline id was >0 after upgrade, but > ... This is strange, if I not mistaken XID copied by copy_clog_xlog_xid(void): http://doxygen.postgresql.org/pg__upgrade_8c_source.html#l00398 and there is no epoch (-e XIDEPOCH) in pg_resetxlog call args I test it like this: ~/inst/pg9.2/bin/initdb d9.2 /usr/lib/postgresql/9.3/bin/initdb d9.3 ~/inst/pg9.2/bin/postgres -D d9.2 -p 5433 ^C ~/inst/pg9.2/bin/pg_resetxlog -e 8 d9.2/ ~/inst/pg9.2/bin/postgres -D d9.2 -p 5433 psql -At -h localhost -p 5433 -c 'select txid_current()' postgres 34359739064 ^C /usr/lib/postgresql/9.3/bin/pg_upgrade -d d9.2 -D d9.3 -b ~/inst/pg9.2/bin -B /usr/lib/postgresql/9.3/bin -k /usr/lib/postgresql/9.3/bin/postgres -D d9.3 -p 5433 -k`pwd`/s psql -At -h localhost -p 5433 -c 'select txid_current()' postgres 756 34359739064 switched to 756 after upgrade -- Sergey Burladyan
